Hub-less Vehicle Wheel Having a Solid Spoke-less Rim and Multilayered Tire

ABSTRACT

The invention disclosed herein consists of a hub-less vehicle wheel having a spoke-less wheel rim ( 12 ) and a two-layered solid tire ( 10 ). The solid outer layer of the tire has a treaded outer surface ( 11 ) bonded to and spanning from one side of the rim to the other, thus encasing the softer inner layer ( 19 ). The softer inner layer ( 19 ) is firmly attached to the rim ( 12 ) thereby indirectly binding the treaded upper layer ( 11 ) to the rim ( 12 ).

CROSS REFERENCE

U.S. Patent Documents 253,098 January 1882 Prosser 4,966,212 October 1990 Hill 5,071,196 December 1991 Sbarro 5,419,619 May 1995 Lew 7,726,370 June 2010 Sauerwald 7,784,510 August 2010 Numata

BACKGROUND OF THE INVENTION

Current vehicles such as motorcycles, automobiles, and trucks have wheels that typically consist of at least two separate components, a wheel rim and a tire. A vehicle uses an axle and hub to give a rim a central point from which to rotate. This point must support the weight of the vehicle, and therefore it requires heavy reinforcement for the vehicle axle, the hub, and the rim. The rim must then transfer the vehicle weight to the tire. Most of these vehicles use pneumatic tires for better rolling resistance and a softer ride. Because of the weight these tires carry, they require various forms of reinforcement and complex materials. Also, these tires require a rim that is air-tight and rigid at the contact location. All of this translates to more reinforcement and weight for the rim.

As such, the design and operation of these wheels give rise to certain limitations. These limitations include weight, size, material, manufacturing process, airflow, recycling, resistance to a foreign object, resistance to imperfection, pressure, temperature and puncture.

It is an object of the present invention to overcome these shortcomings by providing an improved vehicle tire that is compatible with existing suspensions, affordable, and easy to use while still addressing the aforementioned limitations associated with other wheel designs. Accordingly, the objects and advantages of the present invention include light weight designs, almost infinite sizes, simplistic materials, and resistance to failure from either imperfections or environmental factors. Most of which are achieved by using a soft inner rubber layer instead of air. Any additional objects, advantages, and novel features of the invention will become apparent upon examination of the following specification, or will be learned through the practice of the present invention.

BRIEF SUMMARY OF THE INVENTION

The present invention generally relates to a type of lightweight vehicle wheel having good rolling characteristics, while maintaining good wear resistance and a soft ride. More particularly, the present invention relates to a unified wheel consisting of a solid rim and tire structure, with two or more layers of rubber in place of the standard pneumatic equivalent, and with the objects as previously stated in the Background of the Invention. Most particularly, the use of the soft inner rubber layer to dampen poor road conditions, while maintaining the shape of the tire for stability.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a side view of the preferred embodiment of the present invention.

FIG. 2 is a front view of the preferred embodiment of the present invention.

FIG. 3 is a simplified side view of the present invention, showing a simplified brace (14) for mounting it to an arbitrary vehicle.

FIG. 4 is a very simplified cross-sectional side view along line I-I of FIG. 2 for the present invention.

FIG. 5 is a simplified cross-sectional view along lines II-II of FIG. 3 for an alternative embodiment of the invention.

FIG. 6 is a side view of an alternative embodiment of the present invention showing possible drive mechanism mountings (12), a pulley (24) and a drive belt (23).

FIG. 7 is a cross sectional front view along lines III-III of the alternative embodiment (FIG. 6) for the present invention showing the drive mechanism mountings (12) from the rim, a pulley (24), and a drive belt (23).

FIG. 8 shows an alternative embodiment for a simple vehicle.

FIG. 9 shows a cross-sectional view along lines IV-IV of the FIG. 8 embodiment.

DETAILED DESCRIPTION OF THE INVENTION

The present invention can best be understood by associating descriptions to possible applications; hence, this description will refer to the attached drawings in detail.

FIG. 1 shows the preferred embodiment of the present invention where it would most commonly be used. The treaded and round solid rubber layer (11) of the tire (10) is formed directly on the cylindrical rim base (12). A breaking mechanism (17) using a rotor (15), affixed to the rim (12), allows the tire and rotor to act as one united braking surface for the brake caliper (16). The caliper is mounted in between center braces (14) housing the rollers (13) that allow the free rotation of the wheel and rotor structure. The center braces (14) also have protruding shapes upon which the shocks (18) of the vehicle are directly mounted.

FIG. 2 is the front view of the preferred embodiment of the present invention where you can note the cylindrical shape of the tire (11), and the protruding triangular shapes from the center braces (14), which are then attached to suspension shocks (18). Ultimately, In this view one can best visualizes how the weight reduction is achieved.

FIG. 3 shows the simplified side view of the invention with the visible tire (11) and rim (12). It also shows the less visible rollers (13) and a simplified center brace (14) which can be used on multi-wheeled vehicles like trailers or carts where a simplified, light, and freely rotating wheel would be most advantageous.

FIG. 4 is a cross-sectional side view showing the treaded tire layer (11), the softer lower rubber layer (19), and the rotatable hollow cylinder base rim (12) with its circumferentially centered optional rim cavity (20).

FIG. 5 is basically the enlarged cross-sectional view of the tire of FIG. 3 (10), with the treaded tire layer (11), the softer lower layer (19), and the rotatable hollow cylinder base rim (12) with its truncated rim cavity (20). It also shows the basic rail (22), rail guard (21), and roller (13) system used to rotate the wheel, as well as showing a part of the brace (14) that connects it to the vehicle structure.

FIG. 6 is a side view of a special alternative embodiment of the present invention. From this figure you can see the tire (10), the top layer (11), and a modified rim (12) with some possible drive mechanism mountings including a sprocket or pulley system (24), with a drive belt (23) or chain, while also showing its relationship to the brace (14).

FIG. 7 is the cross-sectional view of FIG. 6 showing the tire (10) and the two rubber layers (11 & 19), with a more visible view of the modified rim (12) with its cavity (20) and its pulley (24) holding a drive belt (23). The rim then hovers over a modified center brace (14) that only holds five roller, with the sixth roller being redundant, and it is attached to an arbitrary support system. One should note that the support system does not have to be a centered brace, suggesting possible configurations with steering modifications.

FIG. 8 has a simple vehicle embodiment of the wheel with a cut-away view revealing the tread layer (11), the softer layer (19), and a molded rim. This rim (12) can be made of an epoxy and has the inner surface (25) for directly mounting bearings and in turn an axle or similar structure.

FIG. 9 is the cross-sectional view of FIG. 8 displaying the basic wheel (10), the tread layer (11), the soft layer (19), the simplified rim (12), and the bearing mounting surface (25). 

What is claimed is:
 1. A hub-less vehicle wheel comprising: a. a rotatable hollow cylinder base (12) with a construction designed for directly mounting bearings (25) and/or rollers (13) to the inner surface, by way of a support structure or brace (14), attaching said wheel to the vehicle, and b. a solid, tire (10) fixably attached to the outer surface of said cylinder, with said tire having: (1) a solid, but soft inner layer (19), with a centered width narrower than that of said cylinder, and fixably bonded circumferentially to said cylinder, and (2) a solid, durably treaded, and centered outer layer (11) with a width equal to and fixably attached to said cylinder, as well as centered on, fixably bonded circumferentially to, and thus encasing said inner layer (19).
 2. The wheel of claim 1 with a truncated cylindrical cavity (20), centered on and bonded to, the surface of the hollow cylinder base (12), over which the now curved tire layers (11 & 19) are bonded.
 3. The hollow cylinder base (12) of claim 1, wherein said base has mountings or fitting for a breaking mechanism (17).
 4. The hollow cylinder base (12) of claim 2, wherein said base has mountings or fitting for a breaking mechanism (17).
 5. The hollow cylinder base (12) of claim 1, 2, 3, or 4, wherein said base has mountings or fitting for a drive mechanism, such as a sprocket or pulley structure (24), with the simplest form of these mountings being an extension of the cylinder base going radially inward. 